Leung Dexter Y L, Kwong Yolanda Y Y, Li Felix C H, Tham Clement C Y, Chi Stanley C C, Lam Dennis S C
Department of Ophthalmology & Visual Sciences, The Chinese University of Hong Kong, 2/F., Hong Kong Eye Hospital, 147K Argyle Street, Kowloon, Hong Kong.
Br J Ophthalmol. 2010 May;94(5):663-5. doi: 10.1136/bjo.2009.163014.